Jonathan Kirkendall on mon 10 nov 97
Hi everyone,
I understand what makes some reduction glazes unsuitable for oxidation,
but are there things that make oxidation glazes unsuitable for reduction?
I'm thinking cone 10, specifically.
Jonathan in DC
Craig Martell on tue 11 nov 97
At 08:38 AM 11/10/97 EST, Jonathan wrote:
>----------------------------Original message----------------------------
>Hi everyone,
>I understand what makes some reduction glazes unsuitable for oxidation,
>but are there things that make oxidation glazes unsuitable for reduction?
> I'm thinking cone 10, specifically.
>Jonathan in DC
Most Ox glazes will work in reduction but will usually be different,
sometimes better, sometimes almost the same. Some colorants, such as
Cobalt, are not really changed by atmosphere. Zinc doesn't have much of an
effect in reduction and usually volatilizes and will precipitate somewhere
is your studio if your kiln is indoors and not well ventilated. I would
avoid or change glazes containing zinc.
Try some Ox glazes and see how they do!!
Craig Martell-Oregon
Ron Roy on tue 11 nov 97
Hi Jonathan,
The main difference is that iron oxide becomes a strong flux in reduction -
so it makes oxidation glazes more fluid in reduction and reduction glazes
more stiff in oxidation.
Same thing with bodies.
>----------------------------Original message----------------------------
>Hi everyone,
>I understand what makes some reduction glazes unsuitable for oxidation,
>but are there things that make oxidation glazes unsuitable for reduction?
> I'm thinking cone 10, specifically.
>Jonathan in DC
Ron Roy
93 Pegasus Trail
Scarborough,Canada
M1G 3N8
Evenings, call 416 439 2621
Fax, 416 438 7849
Studio: 416-752-7862.
Email ronroy@astral.magic.ca
Home page http://digitalfire.com/education/people/ronroy.htm
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